DESCRIPTION
Unlike previous generation of charging ICs (BQ2415X and FAN54015 etc.) that can barely deliver charge current up to 1.5A, thanks to ETA’s proprietary technology, ETA6937 packs a powerful punch and can delivery up to 3A of charge current, while still maintaining a small footprint of 2mmx1.6mm. In charge mode, the IC supports a precision Li-ion or Li-polymer charging system for single-cell applications. In boost mode, the IC boosts the battery voltage to VBUS for powering attached OTG devices. In high impedance mode, the IC stops charging or boosting and operates in a mode with very low current from VBUS or battery, to effectively reduce the power consumption when the portable device is in standby mode. Through I2C communication with a host, referred to as "HOST" control/mode, the IC achieves smooth transition among the different operation modes. Even when no I2C communication is available, the IC starts in default mode. During default mode operation, the charger will still charge the battery but using each register's default values.
ETA
